/* ==========================================================================
   AVELINE — designer leather handbags (US market)
   Design tokens → layout → components → motion → responsive
   ========================================================================== */

:root {
  /* palette — warm luxury, light theme */
  --cream: #FBF8F4;
  --cream-2: #F3EDE5;
  --ink: #1A1714;
  --ink-soft: #4A423C;
  --ink-mute: #8A7F75;
  --line: #E4DCD2;
  --gold: #B08D57;
  --gold-dark: #94733F;
  --emerald: #1F5F4B;

  /* type (CJK fallbacks for the ZH locale) */
  --font-display: "Cormorant Garamond", "Times New Roman", Georgia, "Songti SC", "Noto Serif SC", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;

  /* spacing / shape */
  --wrap: 1280px;
  --gutter: 24px;
  --radius: 4px;
  --radius-lg: 10px;
  --section-y: clamp(72px, 9vw, 132px);
  --shadow-sm: 0 2px 10px rgba(26, 23, 20, .05);
  --shadow-md: 0 18px 48px rgba(26, 23, 20, .12);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul { list-style: none; margin: 0; padding: 0; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 500; line-height: 1.08; margin: 0; letter-spacing: -.01em; }
h1 { font-size: clamp(2.9rem, 6.4vw, 5.1rem); }
h2 { font-size: clamp(2rem, 3.7vw, 3.1rem); }
h3 { font-size: 1.15rem; font-family: var(--font-sans); font-weight: 500; letter-spacing: .01em; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--ink); color: var(--cream); padding: 12px 18px;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

.eyebrow {
  font-size: .72rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--gold-dark); margin: 0 0 14px; font-weight: 500;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 50px; padding: 0 30px;
  font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 500;
  border: 1px solid transparent; border-radius: var(--radius);
  transition: background-color .3s var(--ease), color .3s var(--ease),
              border-color .3s var(--ease), transform .2s var(--ease);
}
.btn-primary { background: var(--ink); color: var(--cream); }
.btn-primary:hover { background: var(--gold-dark); }
.btn-ghost { border-color: rgba(26, 23, 20, .35); color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--cream); border-color: var(--ink); }
.btn-block { width: 100%; }
.btn:active { transform: translateY(1px); }

/* ---------- announcement ---------- */
.announce {
  background: var(--ink); color: var(--cream); text-align: center;
  font-size: .74rem; letter-spacing: .14em; text-transform: uppercase;
  padding: 10px 16px; position: relative; z-index: 60;
}
.announce p { margin: 0; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 70;
  background: rgba(251, 248, 244, .82);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background-color .3s var(--ease);
}
.site-header.is-stuck { border-bottom-color: var(--line); background: rgba(251, 248, 244, .95); }

.header-inner {
  display: flex; align-items: center; gap: 20px;
  min-height: 74px;
}
.logo {
  font-family: var(--font-display); font-size: 1.6rem; letter-spacing: .34em;
  text-transform: uppercase; font-weight: 600; padding-left: .34em;
}
.header-inner > .logo { margin-right: auto; }

.primary-nav ul { display: flex; gap: 32px; }
.primary-nav a {
  font-size: .84rem; letter-spacing: .08em; color: var(--ink-soft);
  position: relative; padding-block: 6px;
}
.primary-nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: var(--gold); transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease);
}
.primary-nav a:hover { color: var(--ink); }
.primary-nav a:hover::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 6px; }
.icon-btn {
  width: 42px; height: 42px; display: grid; place-items: center;
  border-radius: 50%; position: relative;
  transition: background-color .25s var(--ease);
}
.icon-btn:hover { background: var(--cream-2); }
.icon-btn svg { width: 21px; height: 21px; fill: none; stroke: var(--ink); stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- language switcher ---------- */
.lang-switch {
  display: flex; align-items: center; gap: 2px; margin-right: 8px;
  padding: 3px; border: 1px solid var(--line); border-radius: 999px;
}
.lang-switch button {
  padding: 5px 10px; border-radius: 999px;
  font-size: .7rem; letter-spacing: .08em; font-weight: 500; color: var(--ink-mute);
  transition: color .25s var(--ease), background-color .25s var(--ease);
}
.lang-switch button:hover { color: var(--ink); }
.lang-switch button[aria-pressed="true"] { background: var(--ink); color: var(--cream); }
.lang-switch button[lang="zh"], .lang-switch button[data-lang="zh"] { letter-spacing: 0; font-size: .74rem; }
.cart-count {
  position: absolute; top: 5px; right: 4px; min-width: 17px; height: 17px;
  background: var(--gold-dark); color: #fff; border-radius: 999px;
  font-size: .64rem; line-height: 17px; text-align: center; font-weight: 600;
}

.nav-toggle { display: none; width: 42px; height: 42px; padding: 11px 9px; }
.nav-toggle span {
  display: block; height: 1.5px; background: var(--ink); margin: 4px 0;
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* ---------- hero ---------- */
.hero {
  position: relative; min-height: min(88vh, 780px);
  display: flex; align-items: center;
  isolation: isolate; overflow: hidden;
}
.hero-media {
  position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%;
}
.hero-media img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: 62% center;
  animation: heroZoom 14s var(--ease) forwards;
}
.hero-scrim {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(100deg,
    rgba(251, 248, 244, .97) 0%,
    rgba(251, 248, 244, .92) 32%,
    rgba(251, 248, 244, .45) 55%,
    rgba(251, 248, 244, 0) 76%);
}
.hero-content { padding-block: clamp(72px, 10vw, 116px); max-width: 620px; }
.hero-copy { font-size: 1.06rem; color: var(--ink-soft); max-width: 46ch; margin-bottom: 32px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 26px; }
.hero-note { font-size: .78rem; letter-spacing: .06em; color: var(--ink-mute); text-transform: uppercase; }

@keyframes heroZoom { from { transform: scale(1.06); } to { transform: scale(1); } }

/* ---------- trust strip ---------- */
.trust { border-block: 1px solid var(--line); background: var(--cream-2); }
.trust-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 18px; padding-block: 34px;
}
.trust-item svg {
  width: 26px; height: 26px; margin-bottom: 12px;
  fill: none; stroke: var(--gold-dark); stroke-width: 1.3; stroke-linecap: round; stroke-linejoin: round;
}
.trust-item h3 { font-size: .95rem; margin-bottom: 4px; }
.trust-item p { font-size: .85rem; color: var(--ink-mute); line-height: 1.5; margin: 0; }

/* ---------- sections ---------- */
.section { padding-block: var(--section-y); }
.section-head { max-width: 640px; margin-bottom: clamp(38px, 5vw, 58px); }
.lede { color: var(--ink-soft); }

/* ---------- categories ---------- */
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.category-card {
  position: relative; overflow: hidden; border-radius: var(--radius-lg);
  background: var(--cream-2); box-shadow: var(--shadow-sm);
}
.category-card img {
  aspect-ratio: 4 / 5; width: 100%; object-fit: cover;
  transition: transform .8s var(--ease), filter .5s var(--ease);
}
.category-card:hover img { transform: scale(1.05); }
.category-body {
  position: absolute; inset: auto 0 0 0; padding: 26px 24px 22px; color: #fff;
  background: linear-gradient(to top, rgba(20, 17, 14, .82), rgba(20, 17, 14, .12) 70%, transparent);
}
.category-body h3 { font-family: var(--font-display); font-size: 1.5rem; margin-bottom: 4px; }
.category-body p { font-size: .86rem; opacity: .88; margin: 0 0 12px; }
.link-arrow { font-size: .76rem; letter-spacing: .14em; text-transform: uppercase; border-bottom: 1px solid rgba(255, 255, 255, .5); padding-bottom: 3px; }

/* ---------- filters ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.filter {
  padding: 9px 20px; border: 1px solid var(--line); border-radius: 999px;
  font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft);
  transition: all .28s var(--ease);
}
.filter:hover { border-color: var(--ink-mute); color: var(--ink); }
.filter.is-active { background: var(--ink); border-color: var(--ink); color: var(--cream); }

/* ---------- product grid ---------- */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px 24px; }
.product-card.is-hidden { display: none; }
.product-media {
  position: relative; overflow: hidden; border-radius: var(--radius-lg);
  background: var(--cream-2); margin-bottom: 16px;
}
.product-media img {
  width: 100%; aspect-ratio: 3 / 4; object-fit: cover;
  transition: transform .7s var(--ease);
}
.product-card:hover .product-media img { transform: scale(1.045); }
.badge {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  background: rgba(251, 248, 244, .94); color: var(--ink);
  font-size: .68rem; letter-spacing: .14em; text-transform: uppercase;
  padding: 6px 11px; border-radius: 2px; font-weight: 500;
}
.badge-new { background: var(--emerald); color: #fff; }
.badge-limited { background: var(--gold-dark); color: #fff; }

.quick-view {
  position: absolute; left: 14px; right: 14px; bottom: 14px; z-index: 2;
  padding: 13px; border-radius: var(--radius);
  background: rgba(251, 248, 244, .95); color: var(--ink);
  font-size: .76rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 500;
  opacity: 0; transform: translateY(10px);
  transition: opacity .35s var(--ease), transform .35s var(--ease), background-color .3s var(--ease);
}
.product-card:hover .quick-view,
.product-card:focus-within .quick-view,
.product-card.is-touched .quick-view { opacity: 1; transform: translateY(0); }
.quick-view:hover { background: var(--ink); color: var(--cream); }

.product-info h3 { margin-bottom: 2px; }
.product-meta { font-size: .82rem; color: var(--ink-mute); margin: 0 0 8px; }
.product-price { font-size: .95rem; font-weight: 500; letter-spacing: .02em; margin: 0; }

.grid-empty { text-align: center; color: var(--ink-mute); padding-block: 40px; }

/* ---------- craft ---------- */
.craft { background: var(--cream-2); }
.craft-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(32px, 5vw, 70px); align-items: center; }
.craft-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.craft-copy p { color: var(--ink-soft); }
.craft-list { margin: 22px 0 30px; display: grid; gap: 10px; }
.craft-list li { position: relative; padding-left: 26px; font-size: .93rem; color: var(--ink-soft); }
.craft-list li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: 12px; height: 1px; background: var(--gold-dark);
}
.craft-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; border-top: 1px solid var(--line); padding-top: 26px; }
.craft-stats strong { display: block; font-family: var(--font-display); font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 600; }
.craft-stats span { font-size: .78rem; color: var(--ink-mute); letter-spacing: .04em; }

/* ---------- reviews ---------- */
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.review {
  margin: 0; padding: 30px 28px; border: 1px solid var(--line);
  border-radius: var(--radius-lg); background: #fff;
}
.stars { color: var(--gold); letter-spacing: .16em; font-size: .95rem; margin-bottom: 14px; }
.review blockquote { margin: 0 0 20px; font-size: .95rem; color: var(--ink-soft); line-height: 1.7; }
.review figcaption { display: flex; flex-direction: column; gap: 2px; font-size: .84rem; }
.review figcaption strong { font-weight: 500; }
.review figcaption span { color: var(--ink-mute); }

/* ---------- signup ---------- */
.signup { background: var(--ink); color: var(--cream); text-align: center; }
.signup .eyebrow { color: var(--gold); }
.signup-inner { max-width: 620px; margin-inline: auto; }
.signup h2 { margin-bottom: 14px; }
.signup p { color: rgba(251, 248, 244, .74); }
.signup-form { display: flex; gap: 10px; margin: 28px 0 12px; }
.signup-form input {
  flex: 1; min-height: 50px; padding: 0 18px; border-radius: var(--radius);
  border: 1px solid rgba(251, 248, 244, .28); background: rgba(251, 248, 244, .06);
  color: var(--cream); font: inherit; font-size: .95rem;
}
.signup-form input::placeholder { color: rgba(251, 248, 244, .45); }
.signup-form input:focus { outline: none; border-color: var(--gold); }
.signup-form input[aria-invalid="true"] { border-color: #E08B7A; }
.signup .btn-primary { background: var(--cream); color: var(--ink); }
.signup .btn-primary:hover { background: var(--gold); color: #fff; }
.form-msg { min-height: 22px; font-size: .86rem; margin: 0 0 6px; color: var(--gold); }
.form-msg.is-error { color: #E9A092; }
.form-fine { font-size: .76rem; color: rgba(251, 248, 244, .5); margin: 0; }

/* ---------- footer ---------- */
.site-footer { background: var(--cream); border-top: 1px solid var(--line); padding-top: 62px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 34px; padding-bottom: 46px; }
.footer-brand .logo { font-size: 1.4rem; margin: 0 0 14px; }
.footer-brand p { font-size: .88rem; color: var(--ink-mute); max-width: 34ch; }
.socials { display: flex; gap: 18px; margin-top: 18px; }
.socials a { font-size: .8rem; letter-spacing: .08em; color: var(--ink-soft); border-bottom: 1px solid var(--line); padding-bottom: 2px; }
.socials a:hover { color: var(--gold-dark); border-color: var(--gold); }
.footer-col h3 { font-size: .8rem; letter-spacing: .16em; text-transform: uppercase; margin-bottom: 16px; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { font-size: .88rem; color: var(--ink-soft); }
.footer-col a:hover { color: var(--gold-dark); }

.footer-bottom {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 16px; border-top: 1px solid var(--line); padding-block: 22px;
  font-size: .78rem; color: var(--ink-mute);
}
.pay, .legal { display: flex; flex-wrap: wrap; gap: 14px; }
.pay li {
  border: 1px solid var(--line); border-radius: 3px; padding: 3px 9px;
  font-size: .7rem; letter-spacing: .06em; color: var(--ink-soft);
}
.legal a:hover { color: var(--gold-dark); }

/* ---------- modal ---------- */
.modal { position: fixed; inset: 0; z-index: 120; display: grid; place-items: center; padding: 20px; }
.modal[hidden] { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(26, 23, 20, .55); backdrop-filter: blur(3px); animation: fade .3s var(--ease); }
.modal-dialog {
  position: relative; z-index: 1; width: min(940px, 100%); max-height: 90vh; overflow: auto;
  display: grid; grid-template-columns: 1fr 1fr; background: var(--cream);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-md);
  animation: pop .38s var(--ease);
}
.modal-media { background: var(--cream-2); }
.modal-media img { width: 100%; height: 100%; object-fit: cover; }
.modal-body { padding: 36px 34px; }
.modal-body h2 { font-size: clamp(1.7rem, 2.6vw, 2.2rem); margin-bottom: 6px; }
.modal-body .product-price { font-size: 1.15rem; margin-bottom: 18px; }
.modal-body > p:not(.product-price):not(.eyebrow):not(.form-fine) { color: var(--ink-soft); font-size: .93rem; }
.modal-specs { margin: 22px 0 26px; display: grid; gap: 9px; }
.modal-specs li { position: relative; padding-left: 22px; font-size: .86rem; color: var(--ink-soft); }
.modal-specs li::before { content: "—"; position: absolute; left: 0; color: var(--gold-dark); }
.modal .form-fine { color: var(--ink-mute); margin-top: 12px; }
.modal-close {
  position: absolute; top: 10px; right: 12px; z-index: 3;
  width: 40px; height: 40px; border-radius: 50%; font-size: 1.6rem; line-height: 1;
  background: rgba(251, 248, 244, .9); color: var(--ink);
}
.modal-close:hover { background: var(--ink); color: var(--cream); }

@keyframes fade { from { opacity: 0; } }
@keyframes pop { from { opacity: 0; transform: translateY(18px) scale(.98); } }

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 26px; z-index: 140;
  transform: translate(-50%, 14px); opacity: 0;
  background: var(--ink); color: var(--cream);
  padding: 13px 22px; border-radius: var(--radius); font-size: .86rem;
  box-shadow: var(--shadow-md); transition: opacity .3s var(--ease), transform .3s var(--ease);
}
.toast[hidden] { display: none; }
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* ---------- reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .primary-nav { display: none; }
  .nav-toggle { display: block; }
  .header-inner > .logo { margin-inline: auto; }
  .header-actions { margin-left: 0; }
  .site-header.nav-open .primary-nav {
    display: block; position: absolute; left: 0; right: 0; top: 100%;
    background: var(--cream); border-block: 1px solid var(--line);
    padding: 18px var(--gutter) 26px; animation: fade .25s var(--ease);
  }
  .site-header.nav-open .primary-nav ul { flex-direction: column; gap: 4px; }
  .site-header.nav-open .primary-nav a { display: block; padding: 13px 0; font-size: 1rem; border-bottom: 1px solid var(--line); }

  .craft-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); row-gap: 28px; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .category-card:last-child { grid-column: span 2; }
  .category-card:last-child img { aspect-ratio: 16 / 9; }
  .review-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .hero { min-height: auto; }
  .header-actions .icon-btn:not(.cart-btn) { display: none; }
  .lang-switch { margin-right: 2px; }
  .lang-switch button { padding: 4px 7px; }
  .hero-media { object-position: 68% center; }
  .hero-scrim { background: linear-gradient(180deg, rgba(251,248,244,.95) 0%, rgba(251,248,244,.86) 46%, rgba(251,248,244,.62) 100%); }
  .hero-content { max-width: none; }
  .hero-cta .btn { flex: 1 1 100%; }
  .product-grid { grid-template-columns: 1fr 1fr; gap: 22px 14px; }
  .quick-view { opacity: 1; transform: none; padding: 11px; font-size: .68rem; left: 8px; right: 8px; bottom: 8px; }
  .badge { top: 8px; left: 8px; font-size: .6rem; padding: 5px 8px; }
  .product-info h3 { font-size: 1rem; }
  .modal-dialog { grid-template-columns: 1fr; }
  .modal-media img { aspect-ratio: 4 / 3; }
  .modal-body { padding: 26px 22px 32px; }
  .signup-form { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .craft-stats { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 420px) {
  .product-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
}

/* ---------- motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important; animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero-media { animation: none; }
}